Build dependency on external cppunit

[Richard Cochran]

Dear list,

I am trying to build Version 4.4.0.3 with a -j30 parallel build, but I
am running into this error.

  In file included from /git/libreoffice/sal/cppunittester/cppunittester.cxx:28:0:
  /git/libreoffice/include/cppunittester/protectorfactory.hxx:24:31: fatal error: cppunit/Protector.h: 
  No such file or directory
   #include <cppunit/Protector.h>

I am not using '--with-system-cppunit'.

Questions:

1. Where is the dependency from sal->cppunit specified?

2. How can I force a build of cppunit (and other externals)?

Thanks,
Richard